Tuesday 21 December 2010

gitty up, jingle horse, pick up your feet

The weather, save for all the daily headaches and tension that it is creating for commuters and travelers, is really remarkable and feels like a good and proper winter, as compared to years' past when the cold and annoyance came late. Routines are more chaotic and treacherous and spoiled plans can take on the taste of sour grapes, but for all that, an over-abundance of snow and ice should not give people license to humbug global warming and environmental initiatives.

Global warming is an unfortunate misnomer, pars pro toto, that has stuck, but broader climate change can embrace both hot and parched and frozen. The expected milder and rainy weather in the British Isles and Central Europe are sustained by the Atlantic Gulf Stream's or any other body of water's alternating current, which exchanges warm equatorial waters for colder arctic ones. Some tinkering with this global machinery has equally global results: altering the salinity of bodies of water, like from fresh water formerly locked up in glaciers and icebergs, effects how well heat can be transported. Extending the idea of greenhouse gases to ideas as venerable and basic as the theory of colour, the gleaming whiteness of snow and ice reflect back some 90% of heat and light projected on their surfaces. Whereas, open ocean water, instead of iced-over or peopled with icebergs, a craggy, bald mountain, as opposed to a snow-capped summit, absorb up to 90% of the light and heat falling on them, warming up all their surroundings and making more surfaces to capture the heat. All this seems to cascade down, but it seems to suggest that a little influence in the opposite direction could also have a big effect--that's what can cause white snow to dazzle one's eyes, makes piles of it in parking lots linger and can enchant snowmen. It's what makes the season certainly memorable, these challenges, and scenic, and for all the cursing and frustrations, shivers and sickness, it should be nothing to put people in the spirit to question or long for ecological collapse.